Archaeologists discovered a walled city in the northern Saudi Arabian desert that was likely home to 500 people as far back as 2,400 B.C. The experts believe the city’s roughly 1,000 years of use ...

One might assume that marine fossils are exclusively unearthed in sedimentary coastal or underwater deposits. This is far from the truth. One might assume that marine fossils are exclusively unearthed ...

Here’s what scientists know about the life form and why it could change their understanding of desert ecosystems.